Article
Food Science & Technology
Monica M. Whent, Holly D. Childs, Shawn Ehlers Cheang, Jiani Jiang, Devanand L. Luthria, Michael R. Bukowski, Carlito B. Lebrilla, Liangli Yu, Pamela R. Pehrsson, Xianli Wu
Summary: This study examined the effects of blanching, freezing, and canning on carbohydrates in sweet corn. The results showed that canning significantly reduced sucrose and total simple sugar concentrations, while oligosaccharide and starch content changed with different processing methods. In addition, the composition and glycosidic linkage of total polysaccharides were altered by different food processing methods.
Article
Chemistry, Applied
Yanan Sun, Ke Wang, Yuehan Dong, Kangkang Li, Honghui Liu, Baozhong Cui, Hongfei Fu, Xiangwei Chen, Yequn Wang, Yunyang Wang
Summary: This study investigated the effects of RF and BW blanching on sweet corn kernels and found that RF treatment maintained better color, texture, and nutrient content. Microscopic analysis showed increased cell damage with increased RF heating temperature, while BW treatment resulted in more severe cell damage.
Article
Food Science & Technology
Caiyun Liu, Minming Lv, Huihui Du, Haoyu Deng, Lu Zhou, Piaoran Li, Xuxian Li, Baoguo Li
Summary: The effects of pulsed electric fields (PEF) and blanching pretreatments on frying kinetics, oil content, color, texture, acrylamide (AA) content, and microstructure were investigated. The results showed that pretreatment significantly reduced moisture ratio and oil content by 25% and 40.33% respectively. The total color change DE value of the pretreated samples was lower compared to the untreated samples. Moreover, pretreatment increased the hardness of the samples after frying, and the AA content in the fried samples pretreated with PEF + blanching was reduced by approximately 46.10% (638 mu g/kg). Finally, fried sweet potato chips obtained by the combined pretreatment exhibited a smoother and flatter cross-sectional microstructure.
Article
Food Science & Technology
Kathryn E. Anderssen, Evan R. McCarney
Summary: This article discusses the applications of nuclear magnetic resonance in studying meat and seafood products, highlighting the challenges in interpreting transverse relaxation in muscle tissue. The research delves into the relaxation mechanisms in muscle tissue, identifying the source of different T-2 peaks in the spectrum and how they relate to changes in tissue microstructure.
Article
Engineering, Environmental
Luke Forster, Carmine D'Agostino, Margot Anabell Llosa-Tanco, Vincenzo Spallina, Camilla Brencio, Fausto Gallucci, Matthew Lindley, Sarah J. Haigh, David Alfredo Pacheco-Tanaka
Summary: The carbonization temperature of Al-CMSM significantly affects pore size, hydrophilicity, permeance, and permselectivity. Lower carbonization temperatures produce more hydrophilic membranes with higher water permeance. Water permeance is higher than CH4 permeance due to the larger kinetic diameter of CH4 and the enhanced adsorption-diffusion transport mechanism in hydrophilic pores.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Davide Cicolari, Fabio Santanni, Leonardo Grassi, Francesca Brero, Marta Filibian, Teresa Recca, Paolo Arosio, Mauro Perfetti, Manuel Mariani, Roberta Sessoli, Alessandro Lascialfari
Summary: The study measured the longitudinal and transverse H-1 nuclear magnetic resonance relaxivities of Ln(III)-DOTA complexes and Mn(II) aqueous solutions. Data analysis showed good agreement with literature for Gd-DOTA and confirmed the negligibility of scalar interaction in the nuclear relaxation mechanism. Higher transverse relaxivities were observed for Dy-DOTA and Tb-DOTA compared to Er-DOTA, which is suggested to be due to a shorter residence time tau(m) possibly linked to fluctuations of the hyperfine interaction and different magnetic anisotropy. The potential use of Dy-DOTA, Tb-DOTA, and Er-DOTA as negative contrast agents for high-field MRI applications was discussed, with Dy- and Tb-derivatives showing similar transverse relaxivity at 16 T to Gd at 1.5 T.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Review
Geosciences, Multidisciplinary
Xinmin Ge, Michael T. Myers, Jianyu Liu, Yiren Fan, Muhammad Aleem Zahid, Jier Zhao, Lori Hathon
Summary: There is a growing interest in characterizing the pore structure of reservoir rocks using the low field nuclear magnetic resonance technique. The review and analysis recommend a composited experiment to measure the surface relaxivity and propose a possible workflow to obtain the variable surface relaxivity. It is important to use multi scale experiments to characterize the full-scale pore space and consider using multiple surface relaxivities for heterogeneous reservoir rocks.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Engineering, Environmental
Cheng Xu, Yugui Yang, Shanshan Hou, Hui Zhang, Chenxiang Li
Summary: This study investigates the properties and characteristics of frozen loess through nuclear magnetic resonance (NMR) tests and flexural tests. The results show that as the temperature decreases, the pore ice content in frozen loess rapidly increases, making the phase transition of residual unfrozen water difficult. The flexural strength, toughness, and roughness of the fracture surface of frozen loess vary under different freezing temperatures and water content conditions.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Environmental Sciences
Biao Liu, Linsen Zhan, Hailong Lu, Jiecheng Zhang
Summary: The formation process, structure, and distribution of gas hydrate in sediments have become important areas of research in exploring and exploiting natural gas hydrate. NMR T-2 is widely used to quantitatively characterize the formation process of gas hydrate and the change in pore characteristics of sediments. It is also employed to analyze the kinetics of gas hydrate formation and specify the pore structure in sediments.
Article
Engineering, Civil
Zhifeng Ren, Enliang Wang, Jiankun Liu, Haiqiang Jiang, Zeyu Yao
Summary: Artificial ground freezing (AGF) has been widely used in various engineering projects. This study focuses on the compressive strength of ultralow-temperature frozen soil and its influencing factors. Experimental tests were conducted to analyze the relationship between water content, temperature, and compressive strength. A prediction model based on the WOA-ENN algorithm was proposed to accurately predict the compressive strength of ultralow-temperature frozen soil. The results provide valuable insights into the mechanical response of frozen soil under ultralow-temperature conditions.
TRANSPORTATION GEOTECHNICS
(2023)
Article
Geosciences, Multidisciplinary
Lei Qin, Siheng Lin, Haifei Lin, Shugang Li, Pengxiang Zhao, Weikai Wang, Zitong Xue
Summary: Studying the ice-water phase transition process of frozen coal is key to break through the theory of cryogenic mining technology.
NATURAL RESOURCES RESEARCH
(2022)
Article
Plant Sciences
Manpreet Singh, Sukhbir Singh, Ved Parkash, Glen Ritchie, Russell W. Wallace, Sanjit K. Deb
Summary: This study evaluated the effects of biochar and deficit irrigation on sweet corn in West Texas. The results showed that 70% crop evapotranspiration can be used as an alternative to full irrigation, with minimal yield loss. Hardwood biochar amendments improved vegetative biomass but had a minor effect on yield.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Energy & Fuels
Lele Liu, Zhun Zhang, Changling Liu, Nengyou Wu, Fulong Ning, Yongchao Zhang, Qingguo Meng, Chengfeng Li
Summary: The study utilized a combination of low-field NMR and X-ray CT to quantify the NMR rho(2) values in quartzitic sands with different xenon hydrate saturations. Results showed changes in NMR rho(2) values due to the presence of xenon hydrate in pores, and theoretical models were proposed based on different pore habits.
Article
Engineering, Geological
Yuanyuan He, Yan Xu, Yan Lv, Lei Nie, Fansheng Kong, Shengtao Yang, Hong Wang, Tingting Li
Summary: This study investigated the freezing characteristics of a widely distributed soil called turfy soil in seasonally frozen regions of northeastern China using the nuclear magnetic resonance method. The results showed a significant phase change within the soil between -2°C to -4°C, and the freezing process could be divided into three stages. The formation of small pores and the connection of large pores made the soil looser after freeze-thaw. The findings provide a basis for studying soil with high organic matter content and the unfrozen water content during freeze-thaw cycles in cold regions.
ENGINEERING GEOLOGY
(2023)
Article
Energy & Fuels
Yingzhi Cui, Igor Shikhov, Rupeng Li, Shitao Liu, Christoph H. Arns
Summary: In this study, the relationship between rock morphology, applied magnetic field strength, resulting relaxation regimes, and observed NMR relaxation responses is investigated numerically. A fine-scale kaolinite model based on SEM images is introduced to address limitations in the discretization of clays typical for micro-CT images. The spatial analysis of relaxation regimes for three different types of sandstone as a function of external magnetic field strength is performed.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
